Introduction

Crucial, a subsidiary of Micron who is a world leader in memory and flash production has established itself on the solid state storage market with their C300 RealSSD for quite some time. Unlike many other manufacturers they are using a Marvell SSD controller instead of SandForce.
Crucial's new m4 SSD is based on the same design but uses 25 nm flash chips and an updated firmware that has been optimized over the previous generation's. The drive also has full support for the SATA 6 Gbps interface which promises increased performance, especially in linear transfer rates.